baber/WOPTO huggingface dataset:
Patent GB-465344-A (GB)
Title: Scanning and synchronizing system for television systems
IPC: H04N3/237
Filed: 1935-10-31
Abstract: 465,344. Converting. FARNSWORTH, P. T. Oct. 31, 1935, No. 30064. [Class 38 (ii)] [Also in Group XL] In a cathode ray television receiving system the voltage supply for the anode of the cathoderay tube is derived from the oscillator providing the scanning currents and controlled by components of the picture signal input also applied to the grid of the cathode-ray tube and means are provided for neutralizing the effect on the oscillator of picture impulses of less than a predetermined potential. As shown, the picture signals together with the synchronizing components are applied to the grid 5 of the tube 6 and to an auxiliary grid 31 of a valve 20 included in a blocking oscillator circuit of a frequency corresponding approximately to that of the line frequency. The potential of the grid 31, which is biassed to be normally positive by means of a battery 35 and resistances 33, 34 is made negative by the synchronizing impulses. The plate current of the valve 20 is blocked in a short interval of time during which current flows in a rectifier valve 38 coupled to the oscillator by a winding 36 on a non-cored transformer 16 and charges a condenser 37 to a potential which is applied to the anode 8 of the tube 6.
Patent GB-735194-A (GB)
Title: Improvements in or relating to automatic speed control systems employing variable speed drives
IPC: F16H61/46
Filed: 1952-11-27
Abstract: 735,194. Fluid-pressure servomotor-control systems; valves. SUNSTRAND MACHINE TOOL CO. Nov. 27, 1952 [Dec. 4, 1951], No. 30072/52. Class 135. [Also in Group XXXV] A variable-speed hydraulic drive 13 controlled by a centrifugal governor 74, is interposed between a variable-speed shaft 10 (e.g. driven from an aircraft engine) and an alternator 12 which is to be maintained at a constant speed. An electric servomotor 207 driving a cam 157 varies the governor loading for fine speed control and alternator load sharing (see Group XXXV). As shown, the variable-speed drive is of the rotatable barrel type and comprises piston motor unit P controlled by a wobbler 15. The inclination of the wobbler is adjustable by a fluid-pressure servomotor having one piston 102 loaded by the lubricating oil pressure at, e.g., 20 lbs. p.s.i. and the other piston 101 supplied from the governor 74 which is fed through a differential pressure-valve 122 from a 300 lbs. p.s.i. line. An overspeed centrifugal governor 251 operates a switch arm 254 in the bottom of the governor housing, Fig. 4 (not shown), to energize a dump valve 130 (for details, see Fig. 2, not shown) which may be held in the dumping position by a latch until manually reset.
Patent GB-409320-A (GB)
Title: Improvements in combined oil-gas generators and burners
IPC: F24C5/04
Filed: 1932-10-27
Abstract: 409,320. Wick burners. THORNTON, J. E., 8, Hill Street, Jersey, Channel Islands. Oct. 27, 1932, No. 30075. [Class 75 (i).] Oil vaporized at wicks C arranged in V-shaped grooves b in a base B is burnt with air rising through an elongated aperture b<1> in the base in spaces A between two vertical elongated perforated tubes A<1>, A<2>, the heat produced being regulated by two straight edged shutters E moved longitudinally or transversely across the wicks by rotating a right and left handed screw E<1>. The oil may be supplied to the grooves b either by a " chicken-feed " device as shown in Figs. 1 and 3 or by wicks f from a tank F arranged below the base B. An overflow duct b<3> removes surplus oil from the channels b. The " chickenfeed device comprises an oil reservoir D fitted with a valve d<4> which is opened against the resistance of a spring d<6> to allow oil to flow into a chamber d when a tap d<1> in a pipe b<2> leading from the chamber d to the grooves b is opened. The wicks c may be of asbestos and the wicks f of cotton. Perforated baffles a<1>, a<2> are provided in the inner tube A'. An impregnated fabric or radiant-clay mantle may be arranged above or in the burner flame. The burner may be used in the rear chamber of a heating stove comprising a rear heating chamber and a cold front chamber having its front wall formed by an imitation fuel fire. The imitation fuel fire may be illuminated by an incandescent mantle burner or by a heated fire clay radiant. Specification 406,134 is referred to. The Provisional Specification describes another construction in which an annular asbestos wick burns below two coaxial perforated metal tubes, the flame being regulated by means of an iris diaphragm pressing upon the upper edge of the wick.
Patent GB-717227-A (GB)
Title: Process for the production of piperidine derivatives
IPC: C07D409/12
Filed: 1952-11-27
Abstract: The invention comprises compounds of the formula <FORM:0717227/IV (b)/1> where R is methyl or ethyl and X is 2-thenyl, 5-chloro-2-thenyl or 5-bromo-2-thenyl.  These are made by treating 1-alkyl-4-anilino-piperidine with the appropriate thenyl halide; a solvent and condensing agent may be present.  Examples show the production of (1) 1-methyl-4 - (N - phenyl - N - (2 - thenyl) - amino) - piperidine and its dihydrochloride and oxalate; (2) 1 - methyl - 4 - [N - phenyl - N - (5 - chloro - 2-thenyl)-amino]-piperidine and its tartrate; (3) 1-methyl-4-[N-phenyl-N-(5-bromo-2-thenyl)-amino] - piperidine and its tartrate.  The products are antihistaminics.
Patent GB-1428529-A (GB)
Title: Apparatus for osygenating water
IPC: C02F7/00
Filed: 1973-06-25
Abstract: 1428529  Oxygenating water MESSERSOHMITT-BOLKOW-BLOHM GmbH 25 June 1973 [3 July 1972] 30138/73 Heading B1C Apparatus for oxygenating water in lakes, dams etc, comprises a device such as a compresser for the supply of oxygen (air) by way of a pipe 20 to a housing 13 having a plurality of compartments 171-178 defined by baffles 161-167 which define the flow of water through the housing from an inlet 14 to an outlet 15 the inflow and discharge being in a horizontal direction. The flow is caused by air being supplied from the compressor 22 to distributors 191, 193, 195 and 197 in alternate compartments in the housing causing the oxygenated water to flow each of the respective compartments to the next. Oxygen supplied in excess of that combining with the water collects at the top 23 of the housing where the level of water and hence the air gap is controlled by a float operated valves 251-254 and 241-244 respectively, the excess oxygen (air) being returned to the compressor by way of pipe 26. The air gap 23 in the housing may be controlled to produce buoyancy to counteract the weight of the submerged housing. In an alternative embodiment the housing 13' (Fig. 2) is cylindrical and submerged with its axis horizontal a screened inlet 14', 31 at one end and an outlet 15' at the other. Transverse baffles are provided in spaced relationship along its axis and adjacent the inlet 14', 31. A distributor 35, in the form of a network of pipes with fine apertures therethrough, is provided and to which oxygen (air) is supplied by way of pipe 20'. To establish a horizontal flow through the housing propellors 33 and 34 are provided which rotate in opposite directions. In a further embodiment Fig. 5 (not shown) the housing is of flat cylindrical configuration with the inlet aperture coaxial and extending vertically, the baffles being arranged concentrically and the outlets being radially extending in a horizontal direction. The housing may be movable and may be grouped as in Fig. 3 with the outlets facing outwards to maintain them in equilibrium to prevent their arbitory displacement of the necessity for anchoring.
Patent GB-844302-A (GB)
Title: Improvements in or relating to voltage measuring and weighing scale arrangements
Inventor: LYONS LAWRENCE J
IPC: G01G19/18
Filed: 1956-10-03
Abstract: 844,302. Weighing. FAIRBANKS MORSE & CO. Oct. 3, 1956, No. 30141/56. Class 40 (1). In a weighing system in which the load is subject to oscillation, oscillation of a final indicator operated in accordance with the value of an error signal via a valve amplifier are diminished by disconnecting the normal H.T. supply to the anode when the error signal approaches zero and substituting a resistancecapacitor network whereby the indicator member is gradually brought to rest. As shown, the voltage from a load cell 14 comprising a bridge of strain gauges fed with A.C. is connected in phase by a network 30, 32 and balanced automatically by the voltage from a potential dividing network driven by a motor 72 in response to an error signal amplified at 40. When the motor begins to oscillate about the balance point, a switch 88 is opened to disconnect the normal source of anode voltage and substitute a diminishing voltage from network 94.
Patent GB-433013-A (GB)
Title: Improvements in and relating to drilling and like rotary tool devices
IPC: B23B45/02
Filed: 1934-10-22
Abstract: 433,013. Portable electric drills &c. DESOUTTER BROS., Ltd.,and DESOUTTER, C., 73, Baker Street, London. Oct. 22, 1934, No. 30188. [Class 83 (iii)] [See also Group XXXV] A hand-applied electric motor-driven rotary tool device suitable for drilling has a single handle 21 projecting transversely at any desired angle to the axis of the motor into which extends, approximately along the length thereof, one of the motor brushes 24. The upper part of the casing 4 is used to house the yoke of a field magnet 5, Fig. 3, while reduction gearing is arranged at the forward end. A fan 34 on the armature shaft draws cooling air through a passageway 35 in the handle and exhausts it through apertures 36 in the casing.
Patent GB-648093-A (GB)
Title: Improvements relating to collapsible portable beds
IPC: A47C17/66
Filed: 1948-11-19
Abstract: 648,093. Bedsteads. FRASER, J. A., and CRIGHTON, P. F. Nov. 19, 1948, No. 30191. [Class 52 (ii)] In a portable bed of the kind comprising a collapsable framework and a supporting surface of canvas &c. secured thereto the framework which is similar to that described in Specification 571,746 is such that both ends of the transverse members are detachable from the side members of the framework. At one side the ends of the transverse members 8 are inter- - locked in a detachable and rotatable manner to the sockets 14 on the side member 9 while at the other ends of the members 8 the sockets on the side member 10 are engageable merely by an endwise movement. Various constructions for detachably and rotatably connecting the members 8 to the side member 9 are described the connection permitting the members 8 to be folded alongside the side member 9 when the members 8 are disengaged from the side member 10. Specifications 648,092 and 648,094 also are referred to.
Patent GB-579041-A (GB)
Title: Improvements in or relating to plant for producing compressed air in particular on board aircraft
IPC: F04B39/16
Filed: 1939-11-17
Abstract: 579,041. Lubricating air compressors. FAIRWEATHER, W. C. (Air Equipement). Nov. 17, 1939, No. 30267. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 29, 1940.] [Class 8 (i)] [Also in Group XXXIV] Compressors are lubricated by an oil suitable for the aircraft apparatus &c. A operated by the compressed air flowing in a closed circuit; the oil is separated from the air passing to the apparatus and returned to the compressor. The oil is conveyed by the stream of compressed air passing through a valved pipe 3, after separation of the bulk of oil in a separator 4; condensed water is removed by a drain cock 55, and the oil collected in the separator is delivered through a pipe 10 to oil inlets 12 on the compressors, under the pressure of the compressed air. During working the oil is led past a valve 15 through passages 32, 33 in the inlet head and crank case to a cylinder containing a grooved piston valve, which it forces into contact with a cam 38 on the drive shaft; the groove and cylinder are such that flow of oil is stopped when the piston valve is fully extended; the cam actuates the air inlet valve push rod. When the oil pressure falls it no longer forces the piston valve against the cam; the groove thus allows a permanent flow of oil under the lower pressure. The valve 15 is held open by the oil pressure and by a push rod 19 pressed on by a diaphragm separating the oil inlet head and the crank case and subject to a pressure such as that of the motor lubricating system; the valve thus closes when the compressor ceases work. The oil delivered to the cam flows through a ball bearing for the shaft to the crank pin. From the crank case it is taken up by the air passing to the inlet valve by a pipe 43 and delivered to the case from the apparatus A.
Patent GB-650520-A (GB)
Title: Improvements in or relating to structural assemblies
IPC: E04B1/58
Filed: 1948-05-31
Abstract: 650,520. Structural bar sections. HENDERSON, R. May 31, 1948, No. 30339. Divided out of 650,497. [Class 20(ii)] Relates to joints between metal channel members and consists in a channel member 1 having flat ribs 2 extending longitudinally of its three inner faces and a coupling block 6 slidably engaged therein, its side faces being grooved to mate with the ribs 2. The outer sides of the channel section form three sides of a square and the channel has longitudinal key-hole slots 3 disposed symetrically in the flanges and web, and lateral holes 5 in line with the slots in the flanges. The channel may be manufactured by an extrusion process. The block 6 is roughly square in section and has a slot 9 from end to end and a hole extending into the slot from the opposite face and a lateral hole at right angles to the slot. Joints between channels are formed as described in Specification 650,497 and each briefly comprises a tongue member or members passing through the key-hole slots 3 and engaging the slots 9 in the blocks 6 and locked by keepers. When a joint is assembled a boss on the tongue member enters the hole in the block extending into the slot 6 and so positions the parts and brings the lateral holes in the channels and blocks almost into alignment and a tapered pin is then driven through the lateral holes and the parts are then wedged together. For a united joint between channels an L-shaped coupling block 21 is used, its limbs held in the channels 18, 19 by any suitable means, including tapered pins.
Patent GB-912654-A (GB)
Title: Improvements in or relating to apparatus for sensing of recorded binary data
Inventor: RIDLER DESMOND SYDNEY
IPC: G11C13/04
Filed: 1958-09-23
Abstract: 912,654. Sensing record cards. STANDARD TELEPHONES & CABLES Ltd. Sept. 23, 1959 [Sept. 23, 1958], No. 30430/58. Class 106 (1). Relates to the sensing by photo-electric means of binary data stored as opaque and transparent portions in a two-dimensional array on a medium. According to the invention a selected portion of the array is sensed by an arrangement comprising light polarizing and analyzing filter means interposed between a light source and the medium. In the embodiments Kerr cells are used. In one arrangement parallel light is passed through polarizing filter A to emerge plane polarized at 45 degrees to the vertical ; thence through a set of parallel cells B forming the column selector, a first analyzing filter C, a further set of cells D forming the row selector, and a second analyzing filter E to photographic data storage plate F. In another arrangement the column and row selectors are made from complete plates of material, Fig. 3 (not shown).
Patent GB-1409869-A (GB)
Title: Vapour generators
IPC: F28D7/16
Filed: 1973-06-26
Abstract: 1409869 Vapour generator SIEMENS AG 26 June 1973 [26 June 1972] 30430/73 Addition to 1408952 Heading F4A The generator of the parent Specification further comprises a preheater 13 located in the vicinity of the outlets of the primary fluid duets 2 to preheat secondary liquid being fed to the generator. The cold feed liquid to be mixed with condensed liquid from the separator 7 may be fed through a duct 23 branching off the inlet 18 to the preheater, or through a separate duct (17), Fig. 2 (not shown). The preheater includes walls extending parallel to the tubes 2, which may comprise rods (30a), Fig. 3 (not shown) having abutting fins (30b), or tubes (30c) coaxial with the tubes (31), Fig. 4 (not shown). The primary fluid may be light water from a pressure nuclear reactor.
Patent GB-174212-A (GB)
Title: Improvements in or relating to regulating devices for gas burners
Filed: 1920-10-27
Abstract: 174,212. Bennik, H. Oct. 27, 1920. Thermally-actuated valves.-A thermally-actuated gas cut-off has a pivoted release catch actuated by a tubular expanding member to release a sliding ring connected by a Bowden wire to a spring-loaded gas cock. The expanding member 4 has a vent 5 and is housed in a tube 2 secured by a collar 3 to a hollow base 1 adapted to be placed on the vessel being heated. The top of the member 4 bears against an adjusting-screw mounted on one end of the catch lever 6, which is pivoted to the tube 2 at 7 and has two projections 9, 10 of different length projecting through the tube. A ring 13 of heat insulating material is connected through a spring 18a and cable 18 with an arm on the gas cock, and when the cock is in the open position is adapted to rest on one or other of the projections 9, 10 and when the cock is closed on a projection 15 on the tube 2. A push 14 is fitted for hand actuation.
Patent GB-362083-A (GB)
Title: Improvements in or relating to liquid pumps
IPC: F04B9/14
Filed: 1930-10-11
Abstract: 362,083. Bilge pumps for boats. KITCHEN, J. G. A., Brookfield Stors, Windermere, Westmorland. Oct. 11, 1930, No. 30454. [Class 102 (i).] In a bilge &c. pump the suction valve 6 has an elongated stem 7 extending into the hollow pistonrod 8 and having a piston 10 loosely fitting the interior of the rod. Liquid is admitted to the interior of the piston-rod by a perforation 16, and the valve 6 is operated with a dashpot action by the reciprocation of the pump piston. Alternatively the piston 10 may fit the piston-rod bore and have a through passage. The pump piston has a plate valve 12, the travel of which is limited by a collar 13.
Patent GB-798961-A (GB)
Title: Presser mechanism for sewing machines
IPC: D05B29/02
Filed: 1956-10-08
Abstract: 798,961. Sewing machines. SINGER MANUFACTURING CO. Oct. 8, 1956 [Oct. 21, 1955; Aug. 1, 1956], No. 30541/56. Class 112 Presser bars. The spring 9, Figs. 1 and 2, in the presser bar 5 is compressed by a rod 10 retained in position by the spring fingers 19 of a split collet 18 engaging a stop 24 on the rod. The compression may be released, when work feed is not required, by depressing the rod so that the fingers ride on to the loose bush 26 and then releasing the rod so that it rises until the fingers, which ride over the bush and stop, engage a second stop 21 lower down on the rod. The collet is carried by a sleeve 15 making adjustable screw-threaded engagement with the machine head for varying the compression. In a modification, Fig. 9, a plurality of stop portions 36 provided on the rod are selectively engaged by the spring fingers 35 when the rod is depressed. Depression of the sleeve 39 releases the fingers from the chosen stop to permit the rod to rise until the collar 43 carried on the rod abuts the bush 33.
Patent GB-748875-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/18
Filed: 1952-12-02
Abstract: 748,875. Luminescent materials. GENERAL ELECTRIC CO., Ltd., McKEAG, A. H. NIXON, R. D., and WELCH, E. E. Dec. 1, 1953 [Dec. 2, 1952; April 21, 1953], Nos. 30548/52 and 10942/53. Class 39 (1). A C.R.T. has a luminescent screen comprising a mixture of blue-fluorescing zinc sulphide and one or more yellow-fluorescing phosphors, including at least one yellow-fluorescing afterglow phosphor, in such proportions as to give an apparent white light when scanned by an electron beam and to have an afterglow such that the afterglow form factor (the ratio of the mean intensity of luminescence to the peak intensity of the 50 c.p.s. sinusoidal component of the waveform) of an elementary area of the screen lies between 0.8 and 1.5 under specified operating conditions. The operating conditions are such that the screen is scanned at a frequency of 50 c.p.s. with a rectangular raster of 200 lines, the beam being focused so that the spacing between successive lines is about equal to the width of a line, the operating voltage being 12 kV. and theunmodulatedcurrent density being such that the brightness of the scanned area is about 20 ft. lamberts. The yellowfluorescing afterglow phosphor or phosphors are such that under the conditions specified the afterglow form factor lies between 1.0 and 3.0, and can be #-zinc silicate (2ZnO.1SiO 2 ) or zinc borate or one or more of cadmium chlorophosphate, cadmium borate, cadmium silicate and calcium silicate, all activated by manganese. An additional yellow-fluorescing phosphor, having an afterglow characteristic approximately the same as that of the blue-fluorescing zinc sulphide, can be included, for example hexagonal zinc-cadmium sulphide activated by silver or by silver and copper, or white zinc sulphide activated by phosphorus. The luminescent screen can also include willemite activated by manganese. In one specific example the luminescent screen includes 10 to 30 per cent by weight of #-zinc silicate activated by manganese, having a grain size of specific surface of 12,000 to 18,000 sq. cms. per gram, 30 to 40 per cent of blue-fluorescing cubic zinc sulphide activated by silver and 60 to 10 per cent of hexagonal zinc-cadmium sulphide activated by silver, both having a grain size of specific surface of 1300 to 1800 sq. cms. per gram, and 0 to 20 per cent of willemite activated by manganese, having a grain size of specific surface of 2000 to 3000 sq. cms. per gram. Other examples are described. The proportion of manganese activator can vary between 0.25 and 2 per cent and of silver between 0.01 and 0.015 per cent. The zinc-cadmium sulphide component may comprise a mixture of zinc cadmium sulphides containing varying ratios of zinc sulphide to cadmium sulphide.
Patent GB-1377603-A (GB)
Title: Water vapour permeable materials
IPC: C08J9/26
Filed: 1971-12-10
Abstract: 1377603 Microporous polyurethanes PORVAIR Ltd 10 Dec 1971 [11 Dec 1970] 30576/74 Divided out of 1368496 Heading C3R A microporous polyurethane sheet material is characterized by a porous matrix of polymer at least 0À5 mm. thick affording a plurality of compact voids which intercommunicate by pores, the matrix being free of voids visible to the unaided eye with 20/20 vision in normal daylight and having a total void volume in excess of 40%, and in which of the total void volume at least 50% is provided by pores which have pore diameters in the range of 6À4 to 25 microns as determined by mercury intrusion penetrometry, and by the voids with which such pores interconnect. The sheet material may be made by the process disclosed in the parent Specification 1,368,496.
Patent GB-368212-A (GB)
Title: Improvements in typewriters
IPC: B41J29/46
Filed: 1931-11-05
Abstract: 368,212. Typewriters. LIVESEY, A. W., Wycke Hall, Tollesbury, Essex. Nov. 5, 1931, No. 30635. [Class 100 (iv).] Margin stops.-An indicator consisting of a red plate of approximately the same length as the keyboard is automatically exposed during the final part of the travel of the carriage. Preferably the plate is pivoted behind the keyboard and is raised to expose the red side thereof by means comprising a depressible roller arranged in the path cf a cam projection on the right-hand end of the carriage.